The body fights off infection by producing antibodies, which destroy or neutralize bacteria, viruses, or other harmful toxins.
Imaging is then performed using devices that are able to detect these molecules inside the body.
Bioluminescent imaging uses natural chemicals such as luciferase, the substance that enables fireflies to glow, to trace the movement of certain cells or to identify the location of specific chemical reactions within the body.
atherosclerosis A disease in which fatty deposits consisting of fat, cholesterol and other substances collect along the walls of arteries.
It is sometimes referred to as hardening of the arteries, arteriosclerosis and coronary artery disease. automated external defibrillator A device used on an individual whose heart suddenly and unexpectedly stops beating.
The resulting two-dimensional or three-dimensional images can reveal various processes such as bony fractures, infection, inflammation and changes secondary to presence of cancer cells.
bradycardia A type of arrhythmia, or heart rhythm problem, that occurs when the heart beats too slow.
This process gradually spreads to the brain’s learning and memory center—the hippocampus—and other areas of the brain, which begin to shrink.
At the same time, beta-amyloid plaques begin to multiply throughout the brain.
biological pathway The molecular interaction involved in biological processes; often a cascade of actions among molecules in a cell that leads to a product or outcome.